DFM17 APRS packets do not format correctly

[rpratt20]

The address fields and the routing fields in the packet header are transmitted in a mixed order. Expect: [sender callsign]>[to callsign],[WIDE1-1],[WIDE2-2],:

TRANSMITTED ORDER: [WIDE2]>[WIDE1-1],1:

Looks as sender callsign is replaced with part of second route. To callsign replaced with first route. Both sender and destination data are missing but the routing fields are missing from the packet. I don't see routing declared in ax25 header file so memory pointers likely address incorrect area.

[rpratt20]

I have fixed this and all works well. A couple minor fixes and a note for config.h file.

In file ax25.h the definition of ax25_packet_header can have a minor change to make char source_ssid a type uint8_t. The change aligns this definition with the definition of destination_ssid and also will then match the declaration of the uint16-t ax25_encode_packet_aprs function in file ax25.c. This does not change operation but cleans up the code.

Second change, in file ax25.c Line 92, change the handling of destination_ssid to read like the line in source_ssid. it should read: header->destination_ssid = (destination_ssid>= 'A' ? destination_ssid - 7 : destination_ssid);;

Finally, add a note in config.h to the APRS_RELAYS. //There can not be a blank space in the APRS_RELAYS. Only comma field seperation.

[mikaelnousiainen]

@rpratt20 Thanks for the bug report and fixes. To speed up applying the fix, could you create a pull request with the actual code changes?

Also, could you attach your full config.h file in a comment here (there is a way to attach downloadable files to these comments)?

That way I could see what causes the memory corruption.

[rpratt20]

I will try a pull request tonight. I’ve never done that. I think the major issue that brought the problem to light was a space in my config path. The coding code does not handle a space between the two path entries. Not a problem if entered correctly. Otherwise, I believe the one byte ssid field was running over memory. I think my change sets destination ssid to a single byte. I had a hard time getting it working because the fields not only were wrong but they changed order. Some attempts to fix also broke transmitter operation. I ran all night last night and have received on a couple of systems today transmitting on 144.39 with a dfm17 on power set to 30. I get about 3/8 mile in town with the dfm on my dash while driving. RandySent from my iPhoneOn Nov 29, 2023, at 14:01, Mikael Nousiainen @.***> wrote: @rpratt20 Thanks for the bug report and fixes. To speed up applying the fix, could you create a pull request with the actual code changes? Also, could you attach your full config.h file in a comment here (there is a way to attach downloadable files to these comments)? That way I could see what causes the memory corruption.

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: @.***>

[rpratt20]

Seems i can not connect a code file into this discussion. I have had to paste the contents of my config.h. Callsign was deleted. Yes the frequencies do work with both APRS and Horus V-4 alternating.

ifndef __CONFIG_H

define __CONFIG_H

// Experimental support for Graw DFM-17 radiosondes added! Please test and report any issues! // WARNING: Using a DFM-17 as a primary flight tracker is NOT recommended yet! // NOTE: DFM-17 radiosondes require a GPS lock (and clear visibility to the sky) to calibrate its internal oscillator. // DFM-17 transmissions, especially APRS, may not decode correctly because of incorrect timing before the internal oscillator has been calibrated.

// Define radiosonde type. Remove the "//" comment to select either RS41 or DFM17. //#define RS41

define DFM17

if !defined(RS41) && !defined(DFM17)

error "No hardware type specified. Please define RS41 or DFM17."

endif

if defined(RS41) && defined(DFM17)

error "Please define either RS41 or DFM17."

endif

// Enable semihosting to receive debug logs during development // See the README for details on how to set up debugging and debug logs with GDB // NOTE: Semihosting has to be disabled when the radiosonde is not connected to an STM32 programmer dongle, otherwise the firmware will not run. //#define SEMIHOSTING_ENABLE //#define LOGGING_ENABLE

/**

• Global configuration */

// Set the tracker amateur radio call sign here

define CALLSIGN "YourCall"

// Disabling LEDs will save power // Red LED: Lit during initialization and transmit. // Green LED: Blinking fast when there is no GPS fix. Blinking slowly when the GPS has a fix.

define LEDS_ENABLE true

// Disable LEDs above the specified altitude (in meters) to save power. Set to zero to disable this behavior.

define LEDS_DISABLE_ALTITUDE_METERS 600

// Allow powering off the sonde by pressing the button for over a second (when the sonde is not transmitting)

define ALLOW_POWER_OFF true

// Number of character pairs to include in locator

define LOCATOR_PAIR_COUNT_FULL 6 // max. 6 (12 characters WWL)

// Delay after transmission for modes that do not use time synchronization. Zero delay allows continuous transmit mode for Horus V1 and V2.

define RADIO_POST_TRANSMIT_DELAY_MS 2000

// Threshold for time-synchronized modes regarding how far from scheduled transmission time the transmission is still allowed

define RADIO_TIME_SYNC_THRESHOLD_MS 2000

// Number of leap seconds to add to the raw GPS time reported by the GPS chip (see https://timetoolsltd.com/gps/what-is-gps-time/ for more info) // This value is used by default, but if the received GPS data contains indication about leap seconds, that one is used instead.

define GPS_TIME_LEAP_SECONDS 18

// Enable this setting to require 3D fix (altitude required, enable for airborne use), otherwise 2D fix is enough

define GPS_REQUIRE_3D_FIX true

// Enable power-saving features of the GPS chip to save power. // This option should be safe to enable, as it enters a selective power saving mode. // If the GPS chip loses fix, it will enter a higher power state automatically. // Note that power saving mode is only enabled after the GPS chip has acquired good GPS fix for the first time. // It is not necessary to use power saving on short flights (e.g. less than 6 hours). // Based on measurements Mark VK5QI, enabling this reduces power consumption by about 30-40 mA (~50%) to around 30-50 mA, // where the consumption is 70-90 mA when power saving is not enabled and any radio transmitters are idle. // See the README for details about power consumption.

define GPS_POWER_SAVING_ENABLE false

// Enable NMEA output from GPS via external serial port. This disables use of I²C bus (Si5351 and sensors) because the pins are shared.

define GPS_NMEA_OUTPUT_VIA_SERIAL_PORT_ENABLE false

if (GPS_NMEA_OUTPUT_VIA_SERIAL_PORT_ENABLE) && ((RADIO_SI5351_ENABLE) || (SENSOR_BMP280_ENABLE))

error GPS NMEA output via serial port cannot be enabled simultaneously with the I2C bus.

endif

/**

• RS41 only: Global configuration (there is no I²C bus exposed in DFM-17) */

// Define the I²C bus clock speed in Hz. // The default of 100000 (= 100 kHz) should be used with the Si5351 clock generator to allow fast frequency changes. // Note that some BMP280 sensors may require decreasing the clock speed to 10000 (= 10 kHz)

define I2C_BUS_CLOCK_SPEED 100000

// Enable use of an externally connected I²C BMP280/BME280 atmospheric sensor // NOTE: Only BME280 sensors will report humidity. For BMP280 humidity readings will be zero.

define SENSOR_BMP280_ENABLE false

// BMP280/BME280 I²C device address is usually 0x76 or 0x77.

define SENSOR_BMP280_I2C_ADDRESS 0x77

// Enable use of an externally connected I²C RadSens radiation sensor

define SENSOR_RADSENS_ENABLE false

// Expected RadSens chip ID to verify initialization of the sensor, default is 0x7D.

define SENSOR_RADSENS_CHIP_ID 0x7D

// RadSens I²C device address, default is 0x66.

define SENSOR_RADSENS_I2C_ADDRESS 0x66

// Uncomment to set RadSens sensor sensitivity (imp/MKR). The default value is 105 imp/MKR. // The value is stored in the non-volatile memory of the microcontroller.

define SENSOR_RADSENS_SENSITIVITY 105

// Enable use of an externally connected I²C Si5351 clock generator chip for HF radio transmissions

define RADIO_SI5351_ENABLE false

// Enable pulse counter via expansion header pin for use with devices like Geiger counters. // This disables the external I²C bus and the serial port as the expansion header pin 2 (I2C2_SDA (PB11) / UART3 RX) is used for pulse input. // Also changes the Horus 4FSK V2 data format and adds a custom data field for pulse count. // The pulse count will wrap to zero at 65535 as it is stored as a 16-bit unsigned integer value.

define PULSE_COUNTER_ENABLE false

// Pulse counter pin modes

define PULSE_COUNTER_PIN_MODE_FLOATING 0

define PULSE_COUNTER_PIN_MODE_INTERNAL_PULL_UP 1

define PULSE_COUNTER_PIN_MODE_INTERNAL_PULL_DOWN 2

// Enable the internal pull-up or pull-down resistor on expansion header pin 2 (I2C2_SDA (PB11) / UART3 RX) // This is necessary if the pulse counter needs to count pulses where the pin is pulled low (ground) or high (VCC) during the pulse. // Set to "floating" if the circuit that generates the pulses already has a pull-up or a pull-down resistor.

define PULSE_COUNTER_PIN_MODE PULSE_COUNTER_PIN_MODE_INTERNAL_PULL_UP

// Pulse counter interrupt edges

define PULSE_COUNTER_INTERRUPT_EDGE_FALLING 1

define PULSE_COUNTER_INTERRUPT_EDGE_RISING 2

// Set the edge of the pulse where the interrupt is triggered: falling or rising.

define PULSE_COUNTER_INTERRUPT_EDGE PULSE_COUNTER_INTERRUPT_EDGE_FALLING

if (PULSE_COUNTER_ENABLE) && ((GPS_NMEA_OUTPUT_VIA_SERIAL_PORT_ENABLE) || (RADIO_SI5351_ENABLE) || (SENSOR_BMP280_ENABLE))

error Pulse counter cannot be enabled simultaneously with GPS NMEA output or I2C bus sensors.

endif

/**

• RS41 only: Built-in Si4032 radio chip transmission configuration */

// Si4032 transmit power: 0..7 // 0 = -1dBm, 1 = 2dBm, 2 = 5dBm (~3 mW), 3 = 8dBm (~6 mW), 4 = 11dBm (~12 mW), 5 = 14dBm (25 mW), 6 = 17dBm (50 mW), 7 = 20dBm (100 mW) // This defaults to 5 (14 dBm, 25 mW), which is a good setting for Horus 4FSK transmissions and it saves power. // For APRS usage, you might want to use maximum power setting of 7 (20 dBm, 100 mW). Note that this setting reduces battery life. // See the README for details about power consumption.

define RADIO_SI4032_TX_POWER 5

// Which modes to transmit using the built-in Si4032 transmitter chip // The COUNT settings define the number of times that each type of transmission is repeated

define RADIO_SI4032_TX_CW false

define RADIO_SI4032_TX_CW_COUNT 1

define RADIO_SI4032_TX_PIP false

define RADIO_SI4032_TX_PIP_COUNT 6

define RADIO_SI4032_TX_APRS true

define RADIO_SI4032_TX_APRS_COUNT 2

define RADIO_SI4032_TX_HORUS_V1 false

define RADIO_SI4032_TX_HORUS_V1_COUNT 1

define RADIO_SI4032_TX_HORUS_V2 true

define RADIO_SI4032_TX_HORUS_V2_COUNT 6

// Continuous transmit mode can be enabled for either Horus V1 or V2, but not both. This disables all other transmission modes. // The continuous mode transmits Horus 4FSK preamble between transmissions // to allow Horus receivers to keep frequency synchronization at all times, which improves reception.

define RADIO_SI4032_TX_HORUS_V1_CONTINUOUS false

define RADIO_SI4032_TX_HORUS_V2_CONTINUOUS false

// Transmit frequencies for the Si4063 transmitter modes

define RADIO_SI4063_TX_FREQUENCY_CW 433169300

define RADIO_SI4063_TX_FREQUENCY_PIP 433169300

define RADIO_SI4063_TX_FREQUENCY_APRS_1200 144390000

// Use a frequency offset to place FSK tones slightly above the defined frequency for SSB reception

define RADIO_SI4063_TX_FREQUENCY_HORUS_V1 433169300

define RADIO_SI4063_TX_FREQUENCY_HORUS_V2 433169300

/**

• DFM-17 only: Built-in Si4063 radio chip transmission configuration */

// Si4063 transmit power: 0..127 // TODO: Document Si4063 transmit power levels

define RADIO_SI4063_TX_POWER 30

// Which modes to transmit using the built-in Si4063 transmitter chip // The COUNT settings define the number of times that each type of transmission is repeated

define RADIO_SI4063_TX_CW true

define RADIO_SI4063_TX_CW_COUNT 1

define RADIO_SI4063_TX_PIP true

define RADIO_SI4063_TX_PIP_COUNT 1

define RADIO_SI4063_TX_APRS true

define RADIO_SI4063_TX_APRS_COUNT 2

define RADIO_SI4063_TX_HORUS_V1 false

define RADIO_SI4063_TX_HORUS_V1_COUNT 1

define RADIO_SI4063_TX_HORUS_V2 true

define RADIO_SI4063_TX_HORUS_V2_COUNT 2

// Continuous transmit mode can be enabled for either Horus V1 or V2, but not both. This disables all other transmission modes. // The continuous mode transmits Horus 4FSK preamble between transmissions // to allow Horus receivers to keep frequency synchronization at all times, which improves reception.

define RADIO_SI4063_TX_HORUS_V1_CONTINUOUS false

define RADIO_SI4063_TX_HORUS_V2_CONTINUOUS false

// Transmit frequencies for the Si4063 transmitter modes

define RADIO_SI4063_TX_FREQUENCY_CW 433169300

define RADIO_SI4063_TX_FREQUENCY_PIP 433169300

define RADIO_SI4063_TX_FREQUENCY_APRS_1200 144390000

// Use a frequency offset to place FSK tones slightly above the defined frequency for SSB reception

define RADIO_SI4063_TX_FREQUENCY_HORUS_V1 433169300

define RADIO_SI4063_TX_FREQUENCY_HORUS_V2 433169300

/**

• RS41 only: External Si5351 radio chip transmission configuration */

// Si5351 transmit power: 0..3 // Si5351 drive strength: 0 = 2mA, 1 = 4mA, 2 = 6mA, 3 = 8mA

define RADIO_SI5351_TX_POWER 5

// Which modes to transmit using an externally connected Si5351 chip in the I²C bus // The COUNT settings define the number of times that each type of transmission is repeated

define RADIO_SI5351_TX_CW true

define RADIO_SI5351_TX_CW_COUNT 1

define RADIO_SI5351_TX_PIP false

define RADIO_SI5351_TX_PIP_COUNT 6

define RADIO_SI5351_TX_HORUS_V1 false

define RADIO_SI5351_TX_HORUS_V1_COUNT 1

define RADIO_SI5351_TX_HORUS_V2 true

define RADIO_SI5351_TX_HORUS_V2_COUNT 4

define RADIO_SI5351_TX_JT9 false

define RADIO_SI5351_TX_JT9_COUNT 1

define RADIO_SI5351_TX_JT65 false

define RADIO_SI5351_TX_JT65_COUNT 1

define RADIO_SI5351_TX_JT4 false

define RADIO_SI5351_TX_JT4_COUNT 1

define RADIO_SI5351_TX_WSPR false

define RADIO_SI5351_TX_WSPR_COUNT 1

define RADIO_SI5351_TX_FSQ false

define RADIO_SI5351_TX_FSQ_COUNT 1

define RADIO_SI5351_TX_FT8 false

define RADIO_SI5351_TX_FT8_COUNT 1

// Transmit frequencies for the Si5351 transmitter modes

define RADIO_SI5351_TX_FREQUENCY_CW 3595000UL

define RADIO_SI5351_TX_FREQUENCY_PIP 3595000UL

define RADIO_SI5351_TX_FREQUENCY_HORUS_V1 3608000UL

define RADIO_SI5351_TX_FREQUENCY_HORUS_V2 3608000UL

define RADIO_SI5351_TX_FREQUENCY_JT9 14085000UL // Was: 14078700UL

define RADIO_SI5351_TX_FREQUENCY_JT65 14085000UL // Was: 14078300UL

define RADIO_SI5351_TX_FREQUENCY_JT4 14085000UL // Was: 14078500UL

define RADIO_SI5351_TX_FREQUENCY_WSPR 14085000UL // Was: 14097200UL

define RADIO_SI5351_TX_FREQUENCY_FSQ 3608350UL // Was: 7105350UL // Base freq is 1350 Hz higher than dial freq in USB

define RADIO_SI5351_TX_FREQUENCY_FT8 14085000UL // Was: 14075000UL

/**

• APRS mode settings
• APRS SSID:
• '0' = (-0) Your primary station usually fixed and message capable
• '1' = (-1) generic additional station, digi, mobile, wx, etc
• '2' = (-2) generic additional station, digi, mobile, wx, etc
• '3' = (-3) generic additional station, digi, mobile, wx, etc
• '4' = (-4) generic additional station, digi, mobile, wx, etc
• '5' = (-5) Other networks (Dstar, Iphones, Androids, Blackberry's etc)
• '6' = (-6) Special activity, Satellite ops, camping or 6 meters, etc
• '7' = (-7) walkie talkies, HT's or other human portable
• '8' = (-8) boats, sailboats, RV's or second main mobile
• '9' = (-9) Primary Mobile (usually message capable)
• 'A' = (-10) internet, Igates, echolink, winlink, AVRS, APRN, etc
• 'B' = (-11) balloons, aircraft, spacecraft, etc
• 'C' = (-12) APRStt, DTMF, RFID, devices, one-way trackers*, etc
• 'D' = (-13) Weather stations
• 'E' = (-14) Truckers or generally full time drivers
• 'F' = (-15) generic additional station, digi, mobile, wx, etc */

define APRS_CALLSIGN CALLSIGN

define APRS_SSID 'B'

// See APRS symbol table documentation in: http://www.aprs.org/symbols/symbolsX.txt

define APRS_SYMBOL_TABLE '/' // '/' denotes primary and '\' denotes alternate APRS symbol table

define APRS_SYMBOL 'O'

define APRS_COMMENT "RS41ng/DFM17 firmware test All mode power at 20, H_v4 at 433169300 hz"

define APRS_RELAYS "WIDE1-1,WIDE2-1"

define APRS_DESTINATION "APZ41N"

//#define APRS_DESTINATION "APRS??"

define APRS_DESTINATION_SSID '0'

// Generate an APRS weather report instead of a position report. This will override the APRS symbol with the weather station symbol.

define APRS_WEATHER_REPORT_ENABLE false

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define APRS_TIME_SYNC_SECONDS 0

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define APRS_TIME_SYNC_OFFSET_SECONDS 0

/**

• Common Horus 4FSK mode settings
• This frequency offset gives 10 X 100 here is 1000 hz. */

define HORUS_FREQUENCY_OFFSET_SI4032 0

define HORUS_FREQUENCY_OFFSET_SI4063 0

//#define HORUS_FREQUENCY_OFFSET_SI4063 115

/**

• Horus V1 4FSK mode settings (deprecated, please use Horus V2 mode) */

// NOTE: Horus 4FSK V1 mode is deprecated in favor of Horus 4FSK V2 mode. All new Horus 4FSK payload IDs are allocated for V2 mode. // NOTE: Payload ID 0 (4FSKTEST) is for testing purposes only, and should not be used on an actual flight. // Please request a new payload ID in GitHub according to the instructions at: https://github.com/projecthorus/horusdemodlib/wiki#how-do-i-transmit-it

define HORUS_V1_PAYLOAD_ID 0

define HORUS_V1_BAUD_RATE_SI4032 100

define HORUS_V1_BAUD_RATE_SI4063 100

define HORUS_V1_BAUD_RATE_SI5351 50

define HORUS_V1_PREAMBLE_LENGTH 16

define HORUS_V1_IDLE_PREAMBLE_LENGTH 32

define HORUS_V1_TONE_SPACING_HZ_SI5351 270

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define HORUS_V1_TIME_SYNC_SECONDS 0

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define HORUS_V1_TIME_SYNC_OFFSET_SECONDS 0

/**

• Horus V2 4FSK mode settings */

// NOTE: Payload ID 256 (4FSKTEST-V2) is for testing purposes only, and should not be used on an actual flight. // Please request a new payload ID in GitHub according to the instructions at: https://github.com/projecthorus/horusdemodlib/wiki#how-do-i-transmit-it

define HORUS_V2_PAYLOAD_ID 256

define HORUS_V2_BAUD_RATE_SI4032 100

define HORUS_V2_BAUD_RATE_SI4063 100

define HORUS_V2_BAUD_RATE_SI5351 50

define HORUS_V2_PREAMBLE_LENGTH 16

define HORUS_V2_IDLE_PREAMBLE_LENGTH 32

define HORUS_V2_TONE_SPACING_HZ_SI5351 270

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define HORUS_V2_TIME_SYNC_SECONDS 0

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define HORUS_V2_TIME_SYNC_OFFSET_SECONDS 0

/**

• CW settings */

// CW speed in WPM, range 5 - 40

define CW_SPEED_WPM 20

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define CW_TIME_SYNC_SECONDS 0

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define CW_TIME_SYNC_OFFSET_SECONDS 0

/**

• Pip settings (short beep generated using CW to indicate presence of the transmitter) */

// Pip speed is defined as CW WPM, range 5 - 40

define PIP_SPEED_WPM 20

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define PIP_TIME_SYNC_SECONDS 0

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define PIP_TIME_SYNC_OFFSET_SECONDS 0

/**

• WSPR settings */

  define WSPR_CALLSIGN CALLSIGN

  define WSPR_LOCATOR_FIXED_ENABLED false

  define WSPR_LOCATOR_FIXED "AA00"

  define WSPR_DBM 10

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define WSPR_TIME_SYNC_SECONDS 120

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define WSPR_TIME_SYNC_OFFSET_SECONDS 1

/**

• FSQ settings */

  define FSQ_CALLSIGN_FROM CALLSIGN

define FSQ_SUBMODE RADIO_DATA_MODE_FSQ_3

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define FSQ_TIME_SYNC_SECONDS 0

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define FSQ_TIME_SYNC_OFFSET_SECONDS 0

/**

• FT/JT mode settings */

// Schedule transmission every 15 seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync.

define FT8_TIME_SYNC_SECONDS 15

// Delay transmission for 1 second after the scheduled time.

define FT8_TIME_SYNC_OFFSET_SECONDS 1

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define JT9_TIME_SYNC_SECONDS 60

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define JT9_TIME_SYNC_OFFSET_SECONDS 1

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define JT4_TIME_SYNC_SECONDS 60

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define JT4_TIME_SYNC_OFFSET_SECONDS 1

// Schedule transmission every N seconds, counting from beginning of an hour (based on GPS time). Set to zero to disable time sync. // See the README file for more detailed documentation about time sync and its offset setting

define JT65_TIME_SYNC_SECONDS 60

// Delay transmission for an N second offset, counting from the scheduled time set with TIME_SYNC_SECONDS.

define JT65_TIME_SYNC_OFFSET_SECONDS 1

include "config_internal.h"

endif

[mikaelnousiainen]

@rpratt20 I believe this was fixed by your code changes in #77, closing. Thanks!